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error[E0381]: used binding `x` isn't initialized
--> $DIR/borrowck-use-uninitialized-in-cast-trait.rs:11:13
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LL | let x: &i32;
| - binding declared here but left uninitialized
LL | let y = x as *const dyn Foo;
| ^ `*x` used here but it isn't initialized
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help: consider assigning a value
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LL | let x: &i32 = &42;
| +++++
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0381`.
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